RIP Galazia. This is truly a deplorable killing and clearly meant to send a message.
Regarding Iceland's former prime minister, Sigmundur David Gunnlaugsson, using an offshore company to hide money. That is not true. It was his wife's company (and money), not his.
The Icelandic tax authorities knew about the company, Wintris, and it was recently revealed she had overpaid on taxes. Saying that Gunnlaugsson used the company to hide money has been widely reported in international media, but it is simply factually incorrect.
Here is an article about Wintris' taxes:
http://www.mbl.is/frettir/kosning/2017/10/02/ofgreiddi_skatta_vegna_wintris/
I hope it is readable with Google Translate.